In 1989, I was selling advertising space in the RF and microwave world. I had always had a desire to be my own boss and had a strong interest in starting my own publication in this field. There was no Tabloid-size publication and none were dedicated mainly to new products. Read More...

FROM WHERE WE SIT

Will OpenRFM Shake Up the Microwave Industry?By Barry Manz

Throughout the history of the RF and microwave industry there has never been a form factor standardizing the electromechanical, software, control plane, and thermal interfaces used by integrated microwave assemblies (IMAs) employed in defense systems. Rather, every system has been built to meet the requirements of a specific system, which may be but probably isn’t compatible with any other system. It’s simply the way the industry has always responded to requests from subcontractors that in turn must meet the physical, electrical, and RF requirements of prime contractors. Read More...

CURRENT ISSUE PRODUCTS

Band Reject Filter SeriesHigher frequency band reject (notch) filters are designed to operate over the frequency range of .01 to 28 GHz. These filters are characterized by having the reverse properties of band pass filters and are offered in multiple topologies. Available in compact sizes.RLC Electronics

SP6T RF SwitchJSW6-33DR+ is a medium power reflective SP6T RF switch, with reflective short on output ports in the off condition. Made using Silicon-on-Insulator process, it has very high IP3, a built-in CMOS driver and negative voltage generator.Mini-Circuits

Group Delay Equalized Bandpass FilterPart number 2903 is a group delayed equalized elliptic type bandpass filter that has a typical 1 dB bandwidth of 94 MHz and a typical 60 dB bandwidth of 171 MHz. Insertion loss is <2 dB and group delay variation from 110 to 170 MHz is <3nsec.KR Electronics

Absorptive Low Pass FilterModel AF9350 is a UHF, low pass filter that covers the 10 to 500 MHz band and has an average power rating of 400W CW. It incurs a rejection of 45 dB minimum at the 750 to 3000 MHz band, and power rating of 25W CW from 501 to 5000 MHz.Werlatone

LTE Band 14 Ceramic DuplexerThis high performance LTE ceramic duplexer was designed and built for use in public safety communication and commercial cellular applications. It operates in Band 14 and offers low insertion loss and high isolation to enable clear communications in the LTE network. Networks International

XMA Corporation – Omni-Spectra has chosen G2 Sales as its manufacturers representative for Florida, Georgia, Alabama, North Carolina, South Carolina, Tennessee, and Mississippi. G2 Sales has a extensive experience selling RF, microwave, and millimeter-wave products. Headquartered in Manchester, NH, XMA Corporation - Omni Spectra is a global supplier of RF and microwave components including connectorized, attenuation, and terminations products along with power dividers/combiners, directional couplers, and custom configurations. The company

manufactures both thin-and thick-film resistive elements as well as microwave printed circuit boards. It differentiates itself with the use of resistive “thin-film” hybrid, a proprietary resistor that allows components to perform under extreme temperatures. As a result, the company’s products are well suited for military, aerospace, and commercial applications. www.xmacorp.com

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•The Design of Ultra Narrowband Amplifiers Using Small-Signal Varactor UpconvertersThis paper presents a method of realizing tunable microwave amplifiers with ultra narrow bandwidths that can be less than 0.5% by the use of a varactor up-converter (UC).Planar Monolithics

•Directivity and VSWR MeasurementsReturn loss and VSWR measurements are complicated by the finite performance of the directional device used to measure the reflected power. The only accurate and convenient way to make return loss measurements is with a well matched high directivity directional coupler or bridge.Marki Microwave

•Switch Solutions for Systems with Low PIM RequirementsDow-Key Microwave has invested in R&D for new RF switch products designed specifically to reduce intermodulation (IM) in coaxial switches. Dow-Key Microwave